Excessive (?) 300D engine clatter
Excessive (?) 300D engine clatter
Cheers
Graham
Hi, all. After a nice long run the other day, I pulled up with a worrisome clatter (perhaps excessive even for an aged 300D) when I started from idle. When I start the engine cold, it sounds like a death rattle, when it warms up, it lessens, but disappears when the revs mount. It sounds (to my untrained ear) to be coming from the front of the engine, but I don't know? Suggestions so far have been cracked piston (no more blow-by from the oil filler than usual and engine is smooth) or a failed cam chain tensioner (chain recently replaced, and new top & tensioner guides, new tensioner, but no slack in chain), or a nailing injector(s). Is it possible to upload a 30-sec sound clip? Anyone out there had something similar?
Cheers
Graham
Have you checked the fuel system? I would look at that before suspecting crank problems.
W123 Mods: 4 speed ** manual climate control ** '85 Kalitucky intake ** manual windows & full tint ** Euro headlights retrofit w/bixenon projectors ** 4 brake light mod ** Vogtland 50mm drop front & Lesjofors S600 drop rear springs ** 16" rims ** late w126 brake spindles, rotors & calipers ** full suspension rehab ** Bilstein HDs ** AL129X alternator & 1/0 starter and charging cables ** 300GD clutch/flywheel ** AFCO 80103N radiator & Earl's 41610 oil cooler ** custom block-off plate, remote oil filter & t-stat ** MW IP w/ tomnik's 6.5mm 'Holly' elements **
S124 Mods: 400E Rear subframe ** SL600 Brakes ** Late 300E 210mm diff ** SLK230 6 speed ** 17" CLK rims ** Vented RF Fender ** Facelift Hood, Headlights, and Lower Cladding **
OBK# 62
SurfRodder
04-18-2016, 06:06 PM #5motor mounts? usually it gets worse at speed thos...
W123 Mods: 4 speed ** manual climate control ** '85 Kalitucky intake ** manual windows & full tint ** Euro headlights retrofit w/bixenon projectors ** 4 brake light mod ** Vogtland 50mm drop front & Lesjofors S600 drop rear springs ** 16" rims ** late w126 brake spindles, rotors & calipers ** full suspension rehab ** Bilstein HDs ** AL129X alternator & 1/0 starter and charging cables ** 300GD clutch/flywheel ** AFCO 80103N radiator & Earl's 41610 oil cooler ** custom block-off plate, remote oil filter & t-stat ** MW IP w/ tomnik's 6.5mm 'Holly' elements **
S124 Mods: 400E Rear subframe ** SL600 Brakes ** Late 300E 210mm diff ** SLK230 6 speed ** 17" CLK rims ** Vented RF Fender ** Facelift Hood, Headlights, and Lower Cladding **
OBK# 62
Just lever the top of it a bit with a screwdriver and see if the noise stops.
1992 W201 190D 2.0L and 1971 W108 280SE with OM606, electronic pump and 6 speed manual gearbox.
It sounds like what you have is more extreme than this but I almost didn't buy a 606 donor car because of what I would have described as a knocking noise. It turned out to be the damper on the tensioner for the "fan belt"!
Just lever the top of it a bit with a screwdriver and see if the noise stops.
1992 W201 190D 2.0L and 1971 W108 280SE with OM606, electronic pump and 6 speed manual gearbox.
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